[Server Lagging People Out]

My server was working fine a minute ago now it is super laggy and after a while its lags you out saying in my minecraft Internal exception: java.netSocketTimeoutExceotion: Read timed out. With this in the console

 

[WARNING] The server is going slow. Last tick was 28288ms ago

[WARNING] Last tick: 1401537189867 Current time: 1401537218155 Warning: 20000 Timeout: 60000

[WARNING] [TPS]: 20.0 Server Tick #9468

[WARNING] Dimension: 0

[WARNING] Loaded chuncks: 713 Active Chunks: 113 Entities: 11217 Tile Entities: 174

 

[WARNING] Entities Last Tick: 5452

[WARNING] Tiles Last Tick: 0

[WARNING] Dimension: 21

[WARNING] Loaded chuncks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0

 

[WARNING] Entities Last Tick: 0

[WARNING] Tiles Last Tick: 0

[WARNING] Dimension: 9

[WARNING] Loaded chuncks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0

 

[WARNING] Entities Last Tick: 0

[WARNING] Tiles Last Tick: 0

[WARNING] Dimension: -127

[WARNING] Loaded chuncks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0

 

[WARNING] Entities Last Tick: 0

[WARNING] Tiles Last Tick: 0

[WARNING] Dimension: 1

[WARNING] Loaded chuncks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0

 

[WARNING] Entities Last Tick: 0

[WARNING] Tiles Last Tick: 0

[WARNING] Dimension: -1

[WARNING] Loaded chuncks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0

[minecraft crashing]